Designation Of Glass Types supply

Designation Of Glass Types Our optical glasses are classified by their main chemical components and are identified by refractive index (nd) and Abbe-number (Vd). Primarily they can be divided into groups, and further they can be identified into various types. Each group has a name and a code, and each type of glass within some group is named by the abbreviated group symbol and an Arab number. We classified them into 18 groups according to their positions on nd- Vd situation chart and their main chemical components. Name Code Name Code Flint crown FK Light flint QF Light crown QK Flint F Crown K Barium BaF Phosphate crown PK Dense barium ZBaF Barium crown BaK Dense flint ZF Dense crown ZK Lanthanum flint LaF Lanthanum crown LaK Dense lanthanum flint ZLaF Spcial crown TK Titanium flint TiF Crown flint KF Special flint TF

Optical Lenses